US 11,445,954 B2Granted

Venous access device

AssigneeSite Saver, Inc.

InventorsSpencer A. Jones, David R. DePoyster, David L. Nichols, Christopher M. Richardson, Kelli L. Shada

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Abstract

A venous access device includes a hub and a bifurcated cannula. The hub includes a bifurcated connecting arm, a blood sampling arm connected to the bifurcated connecting arm, a fluid transfer arm connected to the bifurcated connecting arm, a blood sampling channel and a fluid transfer channel. The blood sampling channel passes through the blood sampling arm and the bifurcated connecting arm. The fluid transfer channel passes through the fluid transfer arm and the bifurcated connecting arm. The bifurcated cannula is coupled to the bifurcated connecting arm and includes a blood sampling lumen having a blood sampling port, a fluid transfer lumen having a fluid transfer port, and a dividing member separating the blood sampling lumen from the fluid transfer lumen. The blood sampling port is 2 mm to 20 mm proximal from the fluid transfer port. The blood sampling channel is fluidly connected to the blood sampling lumen, and the fluid transfer channel is fluidly connected to the fluid transfer lumen.

Claims19

Dependent claims

A venous access device kit, comprising:

(a) a hub, comprising,
(i) a bifurcated connecting arm,
(ii) a blood sampling arm, connected to the bifurcated connecting arm,
(iii) a fluid transfer arm, connected to the bifurcated connecting arm,
(iv) a blood sampling channel, passing through the blood sampling arm and the bifurcated connecting arm, and
(v) a fluid transfer channel, passing through the fluid transfer arm and the bifurcated connecting arm,
(b) a bifurcated cannula having an internal dividing member separating a blood sampling lumen from a fluid transfer lumen, coupled to the bifurcated connecting arm, comprising,
(i) the blood sampling lumen, having a blood sampling port, and
(ii) the fluid transfer lumen, having a fluid transfer port, and
(c) a needle, positioned in the fluid transfer lumen,
wherein the blood sampling port is 15 mm to 20 mm proximal from the fluid transfer port,
the bifurcated cannula has a length of 20 to 75 millimeters,
the bifurcated cannula is a 17 to 24 gauge cannula,
the blood sampling channel is fluidly connected to the blood sampling lumen,
the fluid transfer channel is fluidly connected to the fluid transfer lumen,
the bifurcated cannula is flexible,
the bifurcated cannula has a distal end and the distal end is blunt, and
the bifurcated cannula and the hub are a monolithic component.

15 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/790,386Filed 2 Jul 2015 · us provisional application
Priority: 2 Jul 2014
Published: US 2016/0000363 A17 Jan 2016
Granted: 20 Sep 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

A61B 5/153
Devices for taking samples of blood: devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
A61B 5/14532
Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g.…: for…
A61B 5/15003
Source of blood: for venous or arterial blood
A61B 5/150068
Means for enhancing collection: by tissue compression, e.g. with specially designed surface of device contacting the skin area to be pierced